Difference between revisions of "Farshad Oil Compressibility correlation"

Revision as of 14:29, 22 September 2020

Farshad correlation is an empirical correlation for the oil compressibility published in 1996^[1].

A1 = 0.1982
A2 = 0.6685
A3 = –0.21435
A4 = 1.0116
A5 = -0.1616
A6 = –5.4531
A7 = 5.03 * 1e-4
A8 = 3.5 * 1e-8

C_o = 10^{A6 + A7 \times X - A8 \times X^2}

where:

X = R^{A1}_s \times T^{A2} \times SG^{A3}_g \times Y^{A4}_{oil_API} \times P^{A5}

A_1..A_{8}

= coefficients

C_o

= oil compressibility, psia^-1

P

= pressure, psia

R_s

= oil gas ration, m3/m3

SG_g

= gas specific gravity, dimensionless

T

= temperature, °F

Y_{oil_API}

= oil API gravity, dimensionless

↑ Frashad, F.; LeBlanc, J.L.; Garber, J.D. (1996). "Empirical PVT Correlations For Colombian Crude Oils". SPE Latin America/Caribbean Petroleum Engineering Conference, 23-26 April, Port-of-Spain, Trinidad. Society of Petroleum Engineers (SPE-36105-MS).

@@ Line 28: / Line 28: @@
 :<math> R_s </math> =  oil gas ration, m3/m3
 :<math> SG_g </math> = gas specific gravity, dimensionless
-:<math> T </math> = temperature, °R
+:<math> T </math> = temperature, °F
 :<math> Y_{oil_API} </math> = oil API gravity, dimensionless